@inproceedings{AronssonBroman:2009,
 author = "Peter Aronsson and David Broman",
 title = "{Extendable Physical Unit Checking with Understandable  
Error Reporting}",
 booktitle = "Proceedings of the 7th International Modelica Conference",
 year = "2009",
 pages = "890--897",
 address = "Como, Italy",
}